Improvement in lantern-globes



I. O. MAYO.

Lantern Globe.

No. 102,692. Patented May 3, 1870.

z nPETERs. PHOTO-UTHOGRAPMER. WASHINGTON.

ilinitnfl gm SELF AND JOHN J. OURRIER, OF SAME PLACE.

Letters Patent No. 162,6

92, dated May 3, 187i).

IMPROVEMENT IN LANTERN-GLOBES.

The Schedule referred to in these Letters Patent and making part of the samba To all persons to whom. these presents may come:

Be it known that I, ISRAEL 0. MAYO, of Gloucester, of the county of Essex and State of Massachusetts, have invented a new and useful improvement in Lanterns: and do hereby declare the same tohe fully described in the accompanying drawings, of which- Figure 1 is a frontelevation;

Fignre 2, a vertical section;

Figure 3, a bottom view; and

Figure, 4, a horizontal section of a lantern as provided with my invention.

in the construction of this lantern I make all thatpart, A, of its body which is to encompass the flame oi the lamp, of transparent. glass, formed with a series of convex lcntioular projections or-bulls-eyes, a aa a, the same being so that the rays of light proceeding from the flame may pass through the connections of the l)ull"-eyes, as well as through such hnllseyes. These connections maybe curved, so as to impart to the part A a globular or approximately glohnlarform, in order that it may disperse the rays to better advantage than it would were it cylindrical or prismatic, or approximately so.

'The said glass bodyl atfix to metallic bottom and top parts B (l, of the usual kind, except that- 1 provide the top'or dome-part G, from which the smoke is emitted, with a register, D, or, in other words, with a series of openings, 11 b b, and a perforated annulus or ring, Formed and applied to the said holes, so as to enable a person, by turning such annulus, to either close the holes or open them, more or less, as oceasion may require. p

This register is a matterof importance to facilitate the ready escape of the smoke,and to, admit air to the body of the lantern, in order to regulate the draught of air through it. 7

Y The lamp ofthe lantern is shown at L, as heldin place by means of two spring latches M M.

Underneath the oil-reservoir, 'r, of such body,v is

a chamber, 3, whose sides, -t, are fin'aminous, and" tern is as follows:

The glass body part A, as made with the le'nticular hulls-eyes, and withtransparent connections thereto,

as described.

ISRAEL 0. MAYO; \Vitnesses R. H. Eom', 

